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One vendor quoted a vulnerability scan, the other a penetration test. What's the difference and which do we need?

NNeslihan K***Expert
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#1

We are a 20-person SaaS company providing HR and shift management software to enterprise clients in the US market. Next quarter, we're set to sign a prospective enterprise client worth $80,000 annually, but they require an independent third-party security audit report from us.

We got quotes from two cybersecurity firms. The first quoted $1,500 and a 2-day turnaround for an automated vulnerability scan and report. The second quoted $6,500 and 10 business days for a manual penetration test.

There's nearly a 4x price and timeline difference. What exactly is the difference in technical depth and scope between these two? Will a vulnerability scan suffice for our prospective client, or do enterprise security reviews strictly require a pen test?

EEmre O***MemberCommunity member
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Most Helpful#2

Short answer: A vulnerability scan is a surface-level automated inventory check that flags known vulnerabilities and missing patches, whereas a penetration test is a simulated attack where human testers actively exploit flaws to breach systems or databases. A $1,500 vulnerability scan will definitely fail your enterprise client's security review.

Here are the technical differences: 1) Methodology: A scan just runs an automated tool against your endpoints and dumps every suspicion into a report, meaning plenty of harmless false positives. In a pen test, certified ethical hackers manually probe business logic flaws, broken access controls, and multi-step exploit chains. 2) Exploitation: A vulnerability scanner never tries to break in and exfiltrate data; it just notes that a door might be unlocked. A pen test forces that door open and delivers screenshot proof that they breached the perimeter.

An enterprise customer signing an $80,000/year contract will look straight at the methodology on page one. The moment their InfoSec team sees raw automated scanner output, you'll fail the assessment and your deal will stall. Enterprise vendor procurement specifically looks for a "third-party penetration test."

Go with the $6,500 penetration test. Before signing, make sure you negotiate a clause that includes a free re-test, where they verify and update the final report once your team remediates the identified vulnerabilities.

LLevent Ö***Veteran
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#3

Think of it like this: a vulnerability scan is a robot scanning the exterior of a building with binoculars to see if any windows appear open. Half the time, a glare looks like an open window. A pen test is a skilled locksmith actively trying to pick the lock and break inside. Enterprise clients always want the locksmith's report.

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Doki · Infrastructure migration · 2025

#4

We made the exact same mistake two years ago. We sent a $1,200 automated scan report to close a $50k deal. Their CISO rejected it in 10 minutes flat, saying "This isn't a pentest, it's a standard scanner export," and froze the deal for two months. We ended up having to shell out $6,000 for a real test anyway.

EEmre Y***ExpertCommunity member
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#5

Check the exact wording on the client's security questionnaire. If it asks for a "penetration test report performed by an independent third party," drop the $1,500 quote right away. Handing them a vulnerability scan is just gonna waste everyone's time.

CCerenMember
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#6

The firm charging $1,500 is probably just running an open-source scanner against your infrastructure and slapping their logo on the PDF export. You could run that yourself in two hours, definitely don't pay for it.

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#7

Third-party vendor risk assessments in the enterprise space follow rigid compliance guidelines. Because your HR platform handles employee personal data, legal and compliance teams will only accept the executive summary and remediation sign-off that comes from a manual penetration test as valid audit evidence.

MMustafa S***Member
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#8

negotiate with the 6,500 dollar company, they'll drop it to around 5,500 and but definitely go with the penetration test, the other one looks super amateur in frnot of the client.

Edit: asked below, I wrote the answer in the second message.

EErcan Ç***MemberCommunity member
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#9

When negotiating with the second company, make sure to get a re-test clause included in the contract. Once the testing is done, they'll hand you a list of vulnerabilities, you'll patch them, and then you'll get a clean final report. That clean report is the actual document you need to present to the client.

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#10

I disagree with you on this point. The harder it is to reverse a decision, the slower you should make it.

Just leaving this note, it might be useful.

JJale G***Member
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#11

i agree.

DDilara A***Member
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#12

I partly agree, partly disagree. The harder it is to reverse a decision, the slower you should make it.

Of course, it varies if your situation is different.

OOrhan D***Expert
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#13

I have no experience with vulnerability scan penetration test, so I'm asking. Everyone rushing into vulnerability scan penetration test gets stuck at the same point.

If I were you, I'd go this route.

HHasan K***Member
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#14

This approach has a cost, which isn't discussed. If 2FA is on, a stolen password alone is useless.

Taking notes for two weeks yields better results than a six-month estimate.

MMerve B***Member
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#15

Could you elaborate on that? The real issue isn't the number, but what it's based on.

Taking measures without an inventory leaves doors you haven't seen open. Correct me if I'm wrong.

MMehmet Ç***MemberCommunity member
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#16

I think it's hard to be that definitive about vulnerability scan penetration test. tbh when we decide without measuring we always end up in the same place.

Solutions that work at a small scale collapse when you grow; I learned this late. tbh if I were you I'd go this route.

YYiğit A***VeteranCommunity member
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#17

Thanks, that was the answer I was looking for. Your time to detect an issue directly determines its cost.

That's all, sorry if I went on too long.

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Doki · Server maintenance contract · 2024

#18

Thanks for posting.

ZZafer Ö***Member
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#19

I'm a small business, let me explain from my side. Having backups accessible on the same network and with the same identity makes them part of the target.

Good luck with that.

SSinan B***VeteranCommunity member
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#20

I agree.

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